123856206 has 16 divisors (see below), whose sum is σ = 248998224. Its totient is φ = 41071104.

The previous prime is 123856157. The next prime is 123856259. The reversal of 123856206 is 602658321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52321 + ... + 54636.

It is an arithmetic number, because the mean of its divisors is an integer number (15562389).

Almost surely, 2^123856206 is an apocalyptic number.

123856206 is an abundant number, since it is smaller than the sum of its proper divisors (125142018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123856206 is a wasteful number, since it uses less digits than its factorization.

123856206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107155.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 123856206 is about 11129.0703115759. The cubic root of 123856206 is about 498.4702659337.

The spelling of 123856206 in words is "one hundred twenty-three million, eight hundred fifty-six thousand, two hundred six".